Mark III - Ultra dot - rings?

[AKDRSS]

Was looking around in one of my safes and found a silver Ultradot I had forgotten about so I want to mount it on my Mark III when Ruger returns it.
Any suggestions for silver Weaver style rings to use with the mount supplied by Ruger?

 

[SGW Gunsmith]

Is it the UD25, one inch tube? I kinda like these rings as offered by Weigand Combat. They're only 1/2 inch wide and will hold a red-dot optic, like the Ultra-Dots, very securely.



Some of the other rings available can be too wide for the shorter red-dot sights.



Here, the above rings are holding a Bushnell Trophy on a non-drilled and tapped Ruger pistol.